S
M
T
W
T
F
S
29
53°
32°
30
54°
32°
1
54°
35°
2
53°
40°
3
53°
42°
4
54°
41°
5
53°
44°
6
53°
44°
7
59°
43°
8
53°
40°
9
52°
33°
10
52°
31°
11
65°
46°
12
68°
35°
13
68°
30°
14
57°
31°
15
52°
30°
16
53°
28°
17
51°
30°
18
54°
43°
19
58°
44°
20
65°
43°
21
66°
40°
22
66°
39°
23
64°
44°
24
66°
33°
25
68°
30°
26
67°
29°
27
51°
32°
28
55°
41°
29
62°
41°
30
64°
43°
31
65°
44°
1
66°
42°
2
65°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Elgin
Elgin's December 2026 forecast shows daily high temperatures ranging from 51° to 68°, with overnight lows between 28° and 46°. The average high for December is 59° with an average low of 38°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Elgin. See also: January | February | March.
